Antirattling device for window sashes



ANTIRATTLING DEVICE FOR WINDOW SASHES Filed July 5, 1933 HIS ATTORNEYS Patented Apr. 10, 1934 UNITED STATES PATENT OFFICE ANTIRAT'I'LING DEVICE FOR WINDOW SASHES 1 Claim.

This invention relates to certain novel improvements in anti-rattling devices for window sashes, and has for its principal object the provision of an improved construction of this character which will be highly efiicient in use and economical in manufacture.

It is the object of this invention to provide an improved anti-rattling device for window sashes.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing, showing the preferred form of construction and in which:

Fig. 1 is a fragmentary side elevational view of a window sash showing a preferred form of the invention attached thereto;

Fig. 2 is a vertical sectional view of the same on line 22 in Fig. 1;

Fig. 3 is a horizontal sectional View on line 3-3 in Fig. 1; and

Fig. 4 is a perspective detail view of the new device showing the parts thereof disassembled.

In the drawing a. preferred form of the new device is indicated generally at 10 and includes a supporting element or bracket 11 which is attachable to a window casement portion such as 18, as at 12. Rotatably mounted on the bracket 11 for movement in a vertical plane parallel to the axis of the window, as by a stud 13, is a wedge element 14 which has a cut-out portion or inwardly extending recess formed in its peripheral edge providing a cam face or track 15 (Figs. 1 and 4). Attached to and projecting from the slidable window sash 16 is an operating element in the form of a screw 17 or the like adapted to engage in the trackway 15 in a manner presently to be described.

Formed on the inner or adjacent faces of the bracket 11 and wedge element 14 are intermeshing spur teeth 23 which cooperate to hold the bracket 11 and wedge element 14 in a preselected position relative to each other.

This device operates as follows: When the sash 16 is in lowered position the operating element 17 rides upon the lower face 21 of the cam track 15 and forces the nose portion 22 of the wedge element 14 (into full line position, Fig. 1) between the casement portion 18 and side rail or vertical stile of the sash on which the operating element is mounted thereby wedging the sash 16 outwardly (to the right, Fig. 2; bottom to top of the sheet, Fig. 3) against the easement portion or strip 19 and thus holding the sash 16 against rattling due to wind blowing against the same or other causes.

As the sash 16 is raised it engages the upper edge portion 20 of the cam track 15 and rotates the wedge element 14 (counterclockwise, Fig. 1) from full line to dotted line position, Fig. 1, thereby retracting the wedge element out from between the sash stile and the casement strip 18.

When the sash 16 is in raised position it is out 35 of engagement with the operating element 17 and the wedge element 14 may then be manipulated by hand into and out of wedging engagement between the sash 16 and the casement strip 18.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification, without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having thus described my invention what I claim as new and desire to protect by Letters Patent is:

A device for preventing rattling of a window sash, comprising a bracket adapted for attachment to a portion of a window casement, a wedge element rotatably mounted on the said bracket for movement in a vertical plane parallel to the plane of the sash and having a portion movable into and out of wedging engagement between a portion of the casement and the vertical stile of the sash, said wedge element having a cam track formed on its peripheral edge, and an element attached to and projecting from the said sash stile for engagement with said cam track in said cut-out portion to rotate said wedge element into wedging engagement between the said casement portion and the sash stile when the sash is low ered and out of said engagement when the sash is raised. 

